Respuesta :

Fanco

Answer:

x = 2.17975706

Step-by-step explanation:

sin(x +sin(x)) = 3sin

[tex]sin^{2} x -2sinx = 0[/tex]

[tex]x^{2} -2x =0[/tex]

x(x-2)

sin(x) = 0 or sin(x) = 2